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src/share/classes/com/sun/tools/javac/jvm/ByteCodes.java@959103a6100f (annotated)

src/share/classes/com/sun/tools/javac/jvm/ByteCodes.java

Wed, 27 Apr 2016 01:34:52 +0800

author

aoqi

date

Wed, 27 Apr 2016 01:34:52 +0800

changeset 0

959103a6100f

child 2525

2eb010b6cb22

permissions

-rw-r--r--

Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.tools.javac.jvm;
aoqi@0	27
aoqi@0	28
aoqi@0	29	/** Bytecode instruction codes, as well as typecodes used as
aoqi@0	30	* instruction modifiers.
aoqi@0	31	*
aoqi@0	32	* <p><b>This is NOT part of any supported API.
aoqi@0	33	* If you write code that depends on this, you do so at your own risk.
aoqi@0	34	* This code and its internal interfaces are subject to change or
aoqi@0	35	* deletion without notice.</b>
aoqi@0	36	*/
aoqi@0	37	public interface ByteCodes {
aoqi@0	38
aoqi@0	39	/** Byte code instruction codes.
aoqi@0	40	*/
aoqi@0	41	int illegal = -1,
aoqi@0	42	nop = 0,
aoqi@0	43	aconst_null = 1,
aoqi@0	44	iconst_m1 = 2,
aoqi@0	45	iconst_0 = 3,
aoqi@0	46	iconst_1 = 4,
aoqi@0	47	iconst_2 = 5,
aoqi@0	48	iconst_3 = 6,
aoqi@0	49	iconst_4 = 7,
aoqi@0	50	iconst_5 = 8,
aoqi@0	51	lconst_0 = 9,
aoqi@0	52	lconst_1 = 10,
aoqi@0	53	fconst_0 = 11,
aoqi@0	54	fconst_1 = 12,
aoqi@0	55	fconst_2 = 13,
aoqi@0	56	dconst_0 = 14,
aoqi@0	57	dconst_1 = 15,
aoqi@0	58	bipush = 16,
aoqi@0	59	sipush = 17,
aoqi@0	60	ldc1 = 18,
aoqi@0	61	ldc2 = 19,
aoqi@0	62	ldc2w = 20,
aoqi@0	63	iload = 21,
aoqi@0	64	lload = 22,
aoqi@0	65	fload = 23,
aoqi@0	66	dload = 24,
aoqi@0	67	aload = 25,
aoqi@0	68	iload_0 = 26,
aoqi@0	69	iload_1 = 27,
aoqi@0	70	iload_2 = 28,
aoqi@0	71	iload_3 = 29,
aoqi@0	72	lload_0 = 30,
aoqi@0	73	lload_1 = 31,
aoqi@0	74	lload_2 = 32,
aoqi@0	75	lload_3 = 33,
aoqi@0	76	fload_0 = 34,
aoqi@0	77	fload_1 = 35,
aoqi@0	78	fload_2 = 36,
aoqi@0	79	fload_3 = 37,
aoqi@0	80	dload_0 = 38,
aoqi@0	81	dload_1 = 39,
aoqi@0	82	dload_2 = 40,
aoqi@0	83	dload_3 = 41,
aoqi@0	84	aload_0 = 42,
aoqi@0	85	aload_1 = 43,
aoqi@0	86	aload_2 = 44,
aoqi@0	87	aload_3 = 45,
aoqi@0	88	iaload = 46,
aoqi@0	89	laload = 47,
aoqi@0	90	faload = 48,
aoqi@0	91	daload = 49,
aoqi@0	92	aaload = 50,
aoqi@0	93	baload = 51,
aoqi@0	94	caload = 52,
aoqi@0	95	saload = 53,
aoqi@0	96	istore = 54,
aoqi@0	97	lstore = 55,
aoqi@0	98	fstore = 56,
aoqi@0	99	dstore = 57,
aoqi@0	100	astore = 58,
aoqi@0	101	istore_0 = 59,
aoqi@0	102	istore_1 = 60,
aoqi@0	103	istore_2 = 61,
aoqi@0	104	istore_3 = 62,
aoqi@0	105	lstore_0 = 63,
aoqi@0	106	lstore_1 = 64,
aoqi@0	107	lstore_2 = 65,
aoqi@0	108	lstore_3 = 66,
aoqi@0	109	fstore_0 = 67,
aoqi@0	110	fstore_1 = 68,
aoqi@0	111	fstore_2 = 69,
aoqi@0	112	fstore_3 = 70,
aoqi@0	113	dstore_0 = 71,
aoqi@0	114	dstore_1 = 72,
aoqi@0	115	dstore_2 = 73,
aoqi@0	116	dstore_3 = 74,
aoqi@0	117	astore_0 = 75,
aoqi@0	118	astore_1 = 76,
aoqi@0	119	astore_2 = 77,
aoqi@0	120	astore_3 = 78,
aoqi@0	121	iastore = 79,
aoqi@0	122	lastore = 80,
aoqi@0	123	fastore = 81,
aoqi@0	124	dastore = 82,
aoqi@0	125	aastore = 83,
aoqi@0	126	bastore = 84,
aoqi@0	127	castore = 85,
aoqi@0	128	sastore = 86,
aoqi@0	129	pop = 87,
aoqi@0	130	pop2 = 88,
aoqi@0	131	dup = 89,
aoqi@0	132	dup_x1 = 90,
aoqi@0	133	dup_x2 = 91,
aoqi@0	134	dup2 = 92,
aoqi@0	135	dup2_x1 = 93,
aoqi@0	136	dup2_x2 = 94,
aoqi@0	137	swap = 95,
aoqi@0	138	iadd = 96,
aoqi@0	139	ladd = 97,
aoqi@0	140	fadd = 98,
aoqi@0	141	dadd = 99,
aoqi@0	142	isub = 100,
aoqi@0	143	lsub = 101,
aoqi@0	144	fsub = 102,
aoqi@0	145	dsub = 103,
aoqi@0	146	imul = 104,
aoqi@0	147	lmul = 105,
aoqi@0	148	fmul = 106,
aoqi@0	149	dmul = 107,
aoqi@0	150	idiv = 108,
aoqi@0	151	ldiv = 109,
aoqi@0	152	fdiv = 110,
aoqi@0	153	ddiv = 111,
aoqi@0	154	imod = 112,
aoqi@0	155	lmod = 113,
aoqi@0	156	fmod = 114,
aoqi@0	157	dmod = 115,
aoqi@0	158	ineg = 116,
aoqi@0	159	lneg = 117,
aoqi@0	160	fneg = 118,
aoqi@0	161	dneg = 119,
aoqi@0	162	ishl = 120,
aoqi@0	163	lshl = 121,
aoqi@0	164	ishr = 122,
aoqi@0	165	lshr = 123,
aoqi@0	166	iushr = 124,
aoqi@0	167	lushr = 125,
aoqi@0	168	iand = 126,
aoqi@0	169	land = 127,
aoqi@0	170	ior = 128,
aoqi@0	171	lor = 129,
aoqi@0	172	ixor = 130,
aoqi@0	173	lxor = 131,
aoqi@0	174	iinc = 132,
aoqi@0	175	i2l = 133,
aoqi@0	176	i2f = 134,
aoqi@0	177	i2d = 135,
aoqi@0	178	l2i = 136,
aoqi@0	179	l2f = 137,
aoqi@0	180	l2d = 138,
aoqi@0	181	f2i = 139,
aoqi@0	182	f2l = 140,
aoqi@0	183	f2d = 141,
aoqi@0	184	d2i = 142,
aoqi@0	185	d2l = 143,
aoqi@0	186	d2f = 144,
aoqi@0	187	int2byte = 145,
aoqi@0	188	int2char = 146,
aoqi@0	189	int2short = 147,
aoqi@0	190	lcmp = 148,
aoqi@0	191	fcmpl = 149,
aoqi@0	192	fcmpg = 150,
aoqi@0	193	dcmpl = 151,
aoqi@0	194	dcmpg = 152,
aoqi@0	195	ifeq = 153,
aoqi@0	196	ifne = 154,
aoqi@0	197	iflt = 155,
aoqi@0	198	ifge = 156,
aoqi@0	199	ifgt = 157,
aoqi@0	200	ifle = 158,
aoqi@0	201	if_icmpeq = 159,
aoqi@0	202	if_icmpne = 160,
aoqi@0	203	if_icmplt = 161,
aoqi@0	204	if_icmpge = 162,
aoqi@0	205	if_icmpgt = 163,
aoqi@0	206	if_icmple = 164,
aoqi@0	207	if_acmpeq = 165,
aoqi@0	208	if_acmpne = 166,
aoqi@0	209	goto_ = 167,
aoqi@0	210	jsr = 168,
aoqi@0	211	ret = 169,
aoqi@0	212	tableswitch = 170,
aoqi@0	213	lookupswitch = 171,
aoqi@0	214	ireturn = 172,
aoqi@0	215	lreturn = 173,
aoqi@0	216	freturn = 174,
aoqi@0	217	dreturn = 175,
aoqi@0	218	areturn = 176,
aoqi@0	219	return_ = 177,
aoqi@0	220	getstatic = 178,
aoqi@0	221	putstatic = 179,
aoqi@0	222	getfield = 180,
aoqi@0	223	putfield = 181,
aoqi@0	224	invokevirtual = 182,
aoqi@0	225	invokespecial = 183,
aoqi@0	226	invokestatic = 184,
aoqi@0	227	invokeinterface = 185,
aoqi@0	228	invokedynamic = 186,
aoqi@0	229	new_ = 187,
aoqi@0	230	newarray = 188,
aoqi@0	231	anewarray = 189,
aoqi@0	232	arraylength = 190,
aoqi@0	233	athrow = 191,
aoqi@0	234	checkcast = 192,
aoqi@0	235	instanceof_ = 193,
aoqi@0	236	monitorenter = 194,
aoqi@0	237	monitorexit = 195,
aoqi@0	238	wide = 196,
aoqi@0	239	multianewarray = 197,
aoqi@0	240	if_acmp_null = 198,
aoqi@0	241	if_acmp_nonnull = 199,
aoqi@0	242	goto_w = 200,
aoqi@0	243	jsr_w = 201,
aoqi@0	244	breakpoint = 202,
aoqi@0	245	ByteCodeCount = 203;
aoqi@0	246
aoqi@0	247	/** Virtual instruction codes; used for constant folding.
aoqi@0	248	*/
aoqi@0	249	int string_add = 256, // string +
aoqi@0	250	bool_not = 257, // boolean !
aoqi@0	251	bool_and = 258, // boolean &&
aoqi@0	252	bool_or = 259; // boolean ||
aoqi@0	253
aoqi@0	254	/** Virtual opcodes; used for shifts with long shiftcount
aoqi@0	255	*/
aoqi@0	256	int ishll = 270, // int shift left with long count
aoqi@0	257	lshll = 271, // long shift left with long count
aoqi@0	258	ishrl = 272, // int shift right with long count
aoqi@0	259	lshrl = 273, // long shift right with long count
aoqi@0	260	iushrl = 274, // int unsigned shift right with long count
aoqi@0	261	lushrl = 275; // long unsigned shift right with long count
aoqi@0	262
aoqi@0	263	/** Virtual opcode for null reference checks
aoqi@0	264	*/
aoqi@0	265	int nullchk = 276; // return operand if non-null,
aoqi@0	266	// otherwise throw NullPointerException.
aoqi@0	267
aoqi@0	268	/** Virtual opcode for disallowed operations.
aoqi@0	269	*/
aoqi@0	270	int error = 277;
aoqi@0	271
aoqi@0	272	/** All conditional jumps come in pairs. To streamline the
aoqi@0	273	* treatment of jumps, we also introduce a negation of an
aoqi@0	274	* unconditional jump. That opcode happens to be jsr.
aoqi@0	275	*/
aoqi@0	276	int dontgoto = jsr;
aoqi@0	277
aoqi@0	278	/** Shift and mask constants for shifting prefix instructions.
aoqi@0	279	* a pair of instruction codes such as LCMP ; IFEQ is encoded
aoqi@0	280	* in Symtab as {@literal (LCMP << preShift) + IFEQ }.
aoqi@0	281	*/
aoqi@0	282	int preShift = 9;
aoqi@0	283	int preMask = (1 << preShift) - 1;
aoqi@0	284
aoqi@0	285	/** Type codes.
aoqi@0	286	*/
aoqi@0	287	int INTcode = 0,
aoqi@0	288	LONGcode = 1,
aoqi@0	289	FLOATcode = 2,
aoqi@0	290	DOUBLEcode = 3,
aoqi@0	291	OBJECTcode = 4,
aoqi@0	292	BYTEcode = 5,
aoqi@0	293	CHARcode = 6,
aoqi@0	294	SHORTcode = 7,
aoqi@0	295	VOIDcode = 8,
aoqi@0	296	TypeCodeCount = 9;
aoqi@0	297
aoqi@0	298	static final String[] typecodeNames = {
aoqi@0	299	"int",
aoqi@0	300	"long",
aoqi@0	301	"float",
aoqi@0	302	"double",
aoqi@0	303	"object",
aoqi@0	304	"byte",
aoqi@0	305	"char",
aoqi@0	306	"short",
aoqi@0	307	"void",
aoqi@0	308	"oops"
aoqi@0	309	};
aoqi@0	310	}